JPH057046U - Combine threshing equipment - Google Patents

Abstract

(57) [Summary] [Purpose] Threshing is performed in the small gap between the handling barrel and the net, and in the large gap, grains such as unshattered spikelets and untreated grains are mixed. It has the effect of unraveling the straw debris and culm, and the non-shredded grains are not mixed with the straw debris and culms and discharged to the outside of the machine, thus preventing the occurrence of harvest loss. The gap 18 between the handling cylinder 9 and the receiving net 17 is small on the downward side in the rotation direction of the handling barrel 9, and the gap 18a with the receiving net 17 is increased from the downward side to the upward side in sequence. As described above, the handling cylinder 9 is arranged eccentrically with respect to the center of the receiving net 17.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an improvement of a combine threshing device for threshing a grain culm that has been mowed by the mowing section at the front of the machine body and entirely supplied to the threshing section.

[0002]

[Prior Art]

 A combine threshing device that provides a threshing section at the front of the machine and a threshing section and a sorting section with a handling room behind it to supply all the harvested grain culms into the handling room and perform threshing treatment is already known. ing.

[0003]

[Problems to be solved by the device]

 The known threshing device threshes the grain culm supplied from the mowing section with a slinging drum having a slinging tooth inside the slinging chamber and a receiving net, so that grains and straw wastes leak from the receiving net. The sorting section sorts the grain into straw and straw, and the grain is collected and the straw and culm are discharged outside the machine. However, in this type of threshing device, the whole amount of harvested grain culm is directly supplied to the handling room for threshing treatment, and the grain culm is supplied from the supply port below the front end of the handling barrel into the handling room. The threshing is caused by the rotating action of the handling teeth of the handling cylinder and the net, but the gap between the handling teeth and the net is almost constant over the entire circumference. When it is handed over to the plant, it temporarily stagnates, and the stagnant grain culms are rapidly taken over, increasing the threshing load and consuming excessive power.In addition, if the above gap is wide, grain and straw debris, culm etc. Separation, that is, threshing is not performed completely, and unsheared cuttings and unprocessed grains are generated.The unshrunken grains are mixed with straw waste and culm and discharged outside the machine. There is a problem such as becoming.

[0004]

[Means for Solving the Problems]

 The present invention was devised to solve these problems based on the above situation.The technical means of the present invention is to provide a mowing section at the front of the machine and a handling room behind it. In a threshing device, which is provided with a threshing section and a sorting section, which supplies all the cut culms into the handling room for threshing processing, a handling cylinder having a spiral processing body on its outer periphery is rotatably mounted on the handling cylinder. A front rectangular opening is provided below the front end of the guide plate, and the guide plate is connected to the supply port and is formed in a semi-cylindrical shape toward the rear part. A receiving chamber is provided over the entire length of the barrel along the outer circumference of the handling barrel to form a handling chamber.On the downward side in the direction of rotation of the handling barrel, the gap between the handling barrel and the receiving net is small, and the downward side. Eccentric with respect to the center of the receiving net so that the gap between the receiving net and the receiving net becomes larger in the upward direction. Was characterized in that it has disposed, thereby making it possible to solve the problems described above.

[0005]

[Action]

 The total amount of grain culms that have been lifted and conveyed by the mowing feeder in the mowing section as the machine advances are supplied into the handling room from the supply port at the front of the handling room. The grain culm supplied below the front end of the rotating handling cylinder is the downward rotation side of the spiral processing body of the handling cylinder, that is, the part where the gap between the spiral processing body and the guide plate is small. At that time, it is forcibly fed into the handling chamber by the spiral processing body and is forcibly supplied into the handling chamber from the upward rotation side of the handling cylinder, that is, the part where the gap between the spiral processing body and the guide plate is gradually increased. Furthermore, the gap between the net and the spiral processing body over the entire length of the handling cylinder is small on the downward side in the rotation direction of the spiral processing body, and the gap with the net is large from the downward side to the upward side. , Threshing is performed in the small gaps, and ungrained grains such as uncut grains and untreated grains are mixed in the large gaps. It acts to loosen straw scraps and culms. As a result, unthreated grain is repeatedly threshed over the entire length of the handling cylinder, so that the grain is not mixed with straw waste and culm and discharged to the outside of the machine. Prevent it and perform good threshing treatment.

[0006]

【Example】

 An embodiment of the present invention will be described with reference to the drawings. As shown in FIG. 2, the combine C is provided between the mowing section 1 at the front part arranged near the field scene G and the threshing section 2 arranged at a high position at the rear part of the mowing section 1 for mowing. A feeder 3 that lifts and conveys the grain culm cut by the section 1 to the threshing section 2 is provided. The reaping unit 1 rotates and guides the raised culm to the lower cutting blade 5, and the cutting culm arranged behind the cutting blade 5 is moved toward the center of the machine to the starting end of the feeder 3. It is composed of an auger 6 which is conveyed toward the user. Then, the harvested grain culm which is lifted and conveyed by the feeder 3 is supplied as it is to the starting end of the handling chamber 7 provided in the threshing unit 2.

In the handling chamber 7 of the threshing unit 2, a handling barrel 9 having a conical portion 8 at its front end is rotatably supported, and a spiral processing body 11 is fixed around the handling barrel 9. ing. The handling chamber 7 and the handling barrel 9 are mounted on a shaft 10 inclined in a direction in which the rear side is upward by an angle θ with reference to the front surface of the conical portion 8 and are conveyed from the end of the feeder 3. The grain culms are transferred. On the front surface of the handling chamber 7, a supply port 13 is opened in a rectangular shape in an inlet plate 14 connected to the end of the feeder 3. The supply port 13 is provided on the lower left side of the front end portion of the handling body 9, A guide plate 15 having a semi-cylindrical rear portion is provided from the plate 14 to a receiving net 17 described later, and a front plate 16 is fixed so as to form an upper edge of the supply port 13. The front end of the shaft 10 of the handling cylinder 9 is supported on the front side plate 16 via a bearing 20. The rear end of the shaft 10 is supported by the bearing 20a of the rear side plate 16a having the discharge port 19 opened.

A receiving net 17 is provided continuously with the guide plate 15 and extends over the entire length of the handling cylinder 9. As shown in FIG. 3, reference numeral 22 denotes a partition wall that supports the rear end of the guide plate 15. The partition wall 22 and the bracket 23 disposed below the handling chamber 7 are provided with a drive shaft 25 that is chain driven. It is supported via 24. A drive roller 26 is provided on the drive shaft 25, and support rollers 27, ... Are axially supported at a portion facing the drive roller 26 with the receiving net 17 interposed therebetween, and these support rollers 26, 27 ,. The ring rail 28 provided on the outer periphery of the receiving net 17 formed by stretching a crimping net on the net frame 17d formed on the. The drive roller 26 is configured to drive the receiving net 17 in the direction opposite to the rotation direction of the handling cylinder 9 (arrow A) (arrow B) at a lower rotation speed than the rotation speed of the handling cylinder 9. The spiral action body 11 of the barrel 9 and the net 17 cooperate with each other to promote the threshing action of the grain cullets that are continuously fed from the end of the feeder 3 and supplied, and receive the shattered grains and straw waste. It is made to leak from the net 17 and is sorted into grain and straw by the sorting unit 30, and the grain is first collected by the grain conveying spiral 36, and the straw is discharged out of the machine. The culms are discharged to the outside of the machine through a discharge port 19 provided at the end of the handling chamber 7. The sorting unit 30 includes a first fan 31, a first swing transfer sorting plate 32, a chaff sieve 33, a second swing transport sorting plate 34, a second fan 35, a first grain conveying spiral 36, and a third fan. 37, a second object conveying spiral 38, and a Straw rack 39.

As shown in FIG. 1, the rotating net 17 is driven and supported by the driving roller 26 and a supporting roller 27 that is rotatably supported, and a spring mounted on the machine wall. The roller 29 supported by the damper 29a supports the receiving net 17, and when the receiving net 17 is rotated, vibrations caused by processing strain of the receiving net 17 are absorbed. Further, in order to increase the mesh size of a part of the receiving net 17 of the cylindrical crimp net, for example, as shown in FIGS. 5 and 6, a cage-shaped receiving bar method 17a in which the bars are formed in parallel, or in FIG. As shown, a punching plate system 17b in which a long hole 17c is punched out may be used so that the shattered grains can easily leak.

The gap 18 between the spiral processing body 11 of the handling barrel 9 and the receiving net 17 is small on the downward side in the rotating direction of the handling barrel 9 (arrow A), and from the downward side to the upward side in sequence. The gap 18a with the receiving net 17 is widened toward the front, and the handling cylinder 9 is provided with the net 18 so that the gap 18b with the receiving net 17 becomes the maximum gap in the portion facing the downward side. The structure is eccentric with respect to the center of 17. Therefore, the threshing action is performed in the gap 18, and the unseeded uncut grains and untreated grains are also present in the portion from the gap 18a of the receiving net 17 rotating in the opposite direction (arrow B) to the gap 18b. Straws and culms mixed with such grains fall toward the spiral processing body 11 of the handling barrel 9, so that the entanglement between grains and straws and culms is loosened. By sequentially repeating the above over the entire length of the handling cylinder 9, the unthreshed grain is prevented from being mixed in the straw waste and the culm, and the grain is discharged to the outside of the machine. Prevents harvest loss and prevents threshing.

Further, the gap 19 between the double helix 11 a at the front end of the spiral processing body 11 of the handling cylinder 9 and the portion 15 a where the rear part of the guide plate 15 is formed in a semi-cylindrical shape is provided with the spiral processing body 11. The gap 18 between the handle teeth 11b and the receiving net 17 provided on the upper side and the net 10 in the axis 10 direction of the handle cylinder 9 are configured to be substantially the same, so that the double helix 11a of the spiral processing body 11 conveys it in the feeder 3. It promotes the transfer of grain culms to be used and forcibly and smoothly supplies the grain culms to the handling room 7 in a stable manner, and the threshing load is stable and the required power is steady. .

As described above, the grain culm supplied below the front end portion of the rotating handling cylinder 9 is connected to the spiral processing body 11 and the guide plate 15 on the downward rotation side of the spiral processing body 11 of the handling cylinder 9. The gap 19 and the gap 18 with the receiving net 17 are made small, and in this gap 19 the grain culm is carried around by the spiral treatment body 11 and the upward rotation side of the handling cylinder 9, that is, the spiral treatment body 11. It is forcibly supplied into the handling chamber 7 and threshed at the portion where the gap with the receiving net 17 increases in sequence. Further, the gap 18 between the receiving net 17 and the spiral processing body 11 over the entire length of the handling cylinder 9 is small on the downward side in the rotation direction of the spiral processing body 11, and the gap 17 with the receiving net 17 from the downward side to the upward side. Since the gaps 18a are successively increased, and the handling cylinder 9 is eccentric so that the gap 18b with the receiving net 17 becomes the maximum gap at the portion facing the downward side, the gap 18a is formed. In the large part from the gap 18a to the gap 18b, grains that are not shattered such as uncut grains and untreated grains are mixed, and straw debris and culm are mainly present. The unraveling grain is not mixed with straw waste and culm and discharged to the outside by repeating the above-mentioned actions over the entire length of the handling cylinder 9. , Prevent the occurrence of harvest loss, perform good threshing treatment, threshing load The required power can be maintained steady state so that the stable.

[0013]

[Effect of the device]

 As described above, the present invention provides the threshing section at the front of the machine body, and the threshing section and the sorting section having the handling room behind it to supply the whole amount of the harvested grain culms into the handling room and perform the threshing treatment. In the threshing device for processing, a handling cylinder having a spiral processing body on its outer periphery is rotatably mounted, and a rectangular supply port is opened at the front part below the front end of the handling cylinder and is continuously connected to the supply port. The guide chamber is formed in a semi-cylindrical shape toward the rear and a net is provided adjacent to the guide plate along the outer circumference of the handle cylinder to form a handle chamber. On the downward side of the body in the direction of rotation, the clearance between the handling cylinder and the receiving net is small, and the clearance between the receiving cylinder and the receiving net becomes large from the downward side to the upward side in order. Is arranged so as to be eccentric with respect to the center of the receiving net. By promoting the threshing action of the culms, the threshing action and the action of unraveling the straw debris and the culm that are mixed with grains such as unsheared cuttings and untreated grains are repeated. The non-shredding grains are not mixed with straw waste and culms and discharged to the outside of the machine, which prevents harvest loss from occurring and allows good threshing treatment.

[Brief description of drawings]

FIG. 1 is a front view of a handling room.

FIG. 2 is a side view showing an outline of a combine.

FIG. 3 is a view showing a support structure of a front portion of a handling room and a receiving net.

FIG. 4 is a diagram showing a relationship of a gap in a front portion of a handling chamber.

FIG. 5 is a front view showing another embodiment of the receiving network.

FIG. 6 is a side view showing another embodiment of the receiving network.

FIG. 7 is a main part diagram of another embodiment of the receiving network.

[Explanation of symbols]

 1 Mowing section 2 Threshing section 7 Handling room 9 Handling barrel 11 Spiral processing body 13 Supply port 15 Guide plate 17 Receiving net 18 Gap 18a Gap 30 Sorting part

Claims (1)

[Claims for utility model registration] 1. A mowing unit 1 is provided at the front of the machine body, and a threshing unit 2 having a handling chamber 7 and a sorting unit 30 are provided behind the mowing unit to handle mowed culms. In a threshing device for supplying the whole amount into the chamber 7 for threshing, a handling barrel 9 having a spiral processing body 11 on its outer periphery is rotatably mounted, and a rectangular front portion is provided below the front end of the handling barrel 9. A guide plate 15 having a semi-cylindrical shape which is opened in the mouth 13 and is connected to the supply port 13 and extends toward the rear portion;
Adjacent to the guide plate 15, the handling cylinder 9 extends over the entire length of the handling cylinder 9.
A receiving net 17 along the outer circumference is provided to form the handling chamber 7. On the downward side in the rotational direction of the handling barrel 9, a gap 18 between the handling barrel 9 and the receiving net 17 is small, and the handling barrel 7 is sequentially directed from the downward side. The threshing device for combine harvesters, characterized in that the handling cylinder 9 is eccentrically arranged with respect to the center of the receiving net 17 so that the gap 18a with the receiving net 17 becomes larger toward the upper side. .